Mineralisation and Damp
Posted: Wed Aug 14, 2024 11:27 am
by Tittyc
My internal 2ft thick stone and cob wall is discolouring and also blowing off the plaster surface. I can hack it off but I don't know what is the simplest way to treat the wall to reduce this happening for some time to come.
Re: Mineralisation and Damp
Posted: Thu Aug 15, 2024 10:41 pm
by stoneyboy
Hi tittyc,
You will have to remove the existing plaster/rendered surface to determine what is underneath. The porous elements in the wall could be injected with DPC liquid/cream and the wall rendered with a sand/cement mix containing waterproofing liquid. This will reduce the problem but solve it completely.
Regards S